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Categorical Exclusion Determinations: B4.6

Existing Regulations

B4.6: Additions and modifications to transmission facilities
Additions or modifications to electric power transmission facilities within a previously disturbed or developed facility area. Covered activities include, but are not limited to, switchyard rock grounding upgrades, secondary containment projects, paving projects, seismic upgrading, tower modifications, load shaping projects (such as the installation and use of flywheels and battery arrays), changing insulators, and replacement of poles, circuit breakers, conductors, transformers, and crossarms.

Previous Regulations

Categorical Exclusion Determinations dated before November 14th, 2011 were issued under previous DOE NEPA regulations. See the Notice of Final Rulemaking (76 FR 63763, 10/13/2011) for information changes to this categorical exclusion.

DOCUMENTS AVAILABLE FOR DOWNLOAD

  • July 15, 2015

    Heating, Ventilation and Air Conditioning (HVAC) Upgrades at Multiple Substations and Radio Facilities
    CX(s) Applied: B4.6
    Date: 07/15/2015
    Location(s): Multiple Locations
    Offices(s): Bonneville Power Administration

  • July 1, 2015

    Albany-Eugene No. 1 Nesting Platform Relocation
    CX(s) Applied: B4.6
    Date: 07/01/2015
    Location(s): Oregon
    Offices(s): Bonneville Power Administration

  • June 17, 2015

    Horn Rapids Tap Disconnect Additions
    CX(s) Applied: B4.6
    Date: 06/17/2015
    Location(s): Washington
    Offices(s): Bonneville Power Administration

  • June 15, 2015

    Chehalis District Access Road Maintenance
    CX(s) Applied: B4.6
    Date: 06/15/2015
    Location(s): Washington
    Offices(s): Bonneville Power Administration

  • June 10, 2015

    Fiscal Year 2015 Snohomish District Danger Pole Replacement Project (Update to previous CX issued 4/23/15)
    CX(s) Applied: B4.6
    Date: 06/10/2015
    Location(s): Washington
    Offices(s): Bonneville Power Administration

  • June 3, 2015

    Keeler-Forest Grove Transmission Line Structure Relocations
    CX(s) Applied: B4.6
    Date: 06/03/2015
    Location(s): Oregon
    Offices(s): Bonneville Power Administration

  • April 23, 2015

    Mead Substation Stage 15- Foundation Rebuilds and Transformer Connections
    CX(s) Applied: B4.6
    Date: 04/23/2015
    Location(s): Nevada
    Offices(s): Western Area Power Administration-Desert Southwest Region

  • April 7, 2015

    Sappho Substation Expansion
    CX(s) Applied: B4.6
    Date: 04/07/2015
    Location(s): Washington
    Offices(s): Bonneville Power Administration

  • March 31, 2015

    Burial of 13.8-kV Overhead Line in Burial Ground
    CX(s) Applied: B4.6
    Date: 03/31/2015
    Location(s): South Carolina
    Offices(s): Savannah River Operations Office

  • March 27, 2015

    Contra Costa Soil Testing and Equipment Upgrades
    CX(s) Applied: B4.6, B4.11
    Date: 03/27/2015
    Location(s): Other
    Offices(s): Western Area Power Administration-Sierra Nevada Region

  • March 25, 2015

    Snohomish-Murray Structure 7/6 Guywire Relocation
    CX(s) Applied: B4.6
    Date: 03/25/2015
    Location(s): Washington
    Offices(s): Bonneville Power Administration

  • March 16, 2015

    Olympia-St. Clair Emergency Impairment Remedy
    CX(s) Applied: B4.6
    Date: 03/16/2015
    Location(s): Washington
    Offices(s): Bonneville Power Administration

  • February 6, 2015

    Disconnect Switch Stand Grounding Upgrades - Spokane District
    CX(s) Applied: B4.6
    Date: 02/06/2015
    Location(s): Washington
    Offices(s): Bonneville Power Administration

  • January 13, 2015

    Burns Communication Site Upgrade
    CX(s) Applied: B4.6
    Date: 01/13/2015
    Location(s): Oregon
    Offices(s): Bonneville Power Administration

  • January 13, 2015

    Gila-Gila Valley Lateral Transmission Line Rebuild
    CX(s) Applied: B4.6
    Date: 01/13/2015
    Location(s): Arizona
    Offices(s): Western Area Power Administration-Desert Southwest Region

  • January 9, 2015

    Bouse Hills Pump Plant-Harcuvar 115 Kilovolt Inset Structure
    CX(s) Applied: B4.6
    Date: 01/09/2015
    Location(s): Arizona
    Offices(s): Western Area Power Administration-Desert Southwest Region

  • December 30, 2014

    Wahkiakum 115 Kilovolt Disconnect Switch Addition
    CX(s) Applied: B4.6
    Date: 12/30/2014
    Location(s): Washington
    Offices(s): Bonneville Power Administration

  • September 30, 2014

    Sacajawea Substation Expansion and Upgrade
    CX(s) Applied: B4.6
    Date: 41912
    Location(s): Washington
    Offices(s): Bonneville Power Administration

  • August 27, 2014

    Bouse Hills Pumping Plant to Harcuvar 115 Kilovolt Transmission Line, Inset Structure Installation
    CX(s) Applied: B4.6
    Date: 41878
    Location(s): Arizona
    Offices(s): Western Area Power Administration-Desert Southwest Region

  • June 9, 2014

    Liberty Parker #2 Transmission Line - Erosion Repair at Structure 53/1
    CX(s) Applied: B4.6
    Date: 06/09/2014
    Location(s): Arizona
    Offices(s): Western Area Power Administration-Desert Southwest Region

  • June 3, 2014

    Collbran Substation Conduit Installation and Breaker Replacement, Mesa County, Colorado
    CX(s) Applied: B4.6
    Date: 06/03/2014
    Location(s): Colorado
    Offices(s): Western Area Power Administration-Rocky Mountain Region

  • June 3, 2014

    Collbran Substation Conduit Installation and Breaker Replacement, Mesa County, Colorado
    CX(s) Applied: B4.6
    Date: 06/03/2014
    Location(s): Colorado
    Offices(s): Western Area Power Administration-Rocky Mountain Region

  • June 2, 2014

    Swan Valley-Teton Overhead Fiber Line Install
    CX(s) Applied: B4.6
    Date: 06/02/2014
    Location(s): Idaho
    Offices(s): Bonneville Power Administration

  • May 27, 2014

    Asarco and Troy Substations Grounding Mat Installations
    CX(s) Applied: B4.6
    Date: 05/27/2014
    Location(s): Montana
    Offices(s): Bonneville Power Administration

  • May 5, 2014

    Doniphan Substation Backup Station Service Project
    CX(s) Applied: B4.6
    Date: 05/05/2014
    Location(s): Missouri
    Offices(s): Southwestern Power Administration